Does this video show Pope Francis performing an exorcism?

A new video has surfaced, which some claim shows Pope Francis performing an exorcism in front of cameras in St. Peter's Square

A new video has emerged which purports to show the new Pontiff of the Catholic Church, Pope Francis, performing an exorcism in front of cameras in St Peter's Square.

The footage was taken immediately after Pentecostal mass on Sunday 19th May and appears to show the Pontiff approach the second of two wheelchair bound people, place his hands on his head, and begin to recite a prayer.

As Pope Francis continues, the man's jaw drops and he sinks into his wheelchair, exhaling sharply.

La Repubblica quotes an exorcism expert has saying: “It was a prayer of liberation from evil or even a real exorcism.”